Improvement in road-rollers



A. LIN D ELU F.

Wo'Z/MJ as:

AM. Pnom-mnoenAPglcco.mdosamuspreacssg) ing device from a central PATENT ANDERS LINDELOF, OF BROOKLYN, NEW YORK.

IMPROVEMENT IN ROAD-ROLLERS.

supporting the steering-roller or rollers and of providing for its or their adjustment to varying grades or inequalities of ground surface, whereby, While every facility is afforded for steering, said. rollers are made to accommodate themselves to changing irregularities of surface, with a full or extended bearing of the same on the ground and without undue strain; also, whereby, when the roller is divided,both rollers may be arranged in close proximity to each other, end to end, and with outside bearings, subject to the control-of the steerposition over the rollers.

In the accompanying drawing, which forms part of this specification, Figure '1 represents a partially-sectional side view of a steam roadroller in part having my invention applied, and Fig. 2 a front view thereof, omitting the main-roller.

Similar letters of reference indicate corre sponding parts.

A is the frame of the machine; B, its main roller and G 0, its steering-roller or rollers, having my invention applied, and here shown as arranged in front, but it is equally applicable to a rear roller or rollers. The steeringroller may be of single construction, .but it is i preferred to build it in sections of two rollers,

O 0, arranged end to end to provide for its rotative movement when varying the direction of the machine and traveling over changin g surfaces or curvatures in the road, as providedfor in other road-rolling machines. The axle b, on which the rollers G (l are arranged to independently rotate, has bearings at its two ends in a yoke or saddle, .D, constructed to straddle the two rollers and situated over them. This saddle is connected midway of its length withthe adjacent portion of the main frame A, or rather with the king-bolt d, by which the steering is effected, in a jointed manner, by or through a joint-pin or swiveling connection, f, the axial line of which is transversely to that of therollers and of the king-bolt, whereby, while every provision is made for steering, just the same as if the kingbolt were rigidly connected with the rollers, the latter work on a universal joint, as it were, and are free to adjust themselves to changin g irregularities of surface being traveled over with a full or extended bearing of the same on the ground, and without exercising any unduestrain on the frame or on the parts connecting themwith the frame.

' Although this universal-joint-like attachment of the rollers O 0 might be made directly with the center of the axle by arranging said rollers at a suitable distance apart, as they are usually done in other road-rollers,to provide for a rigid central bearing, yet it is prefer d to dispense with any central bearing, and to arrange the rollers in as close proximity as possible, so as to avoid the formation in the road. To this end I use the yoke or saddle D, forming hearings to the axle at its ends, and this without subjecting the yoke to any excessive or damaging strain by reason of the universal-joint attachment of said yoke with the main frame.

WVhat is here claimed, and desired to be secured by Letters Patent, is

1. The steering roller or rollers connected with the main frame by a cross-joint or pin, in connection with the king-bolt, by which they are steered, to provide for a free or universal adjustment of said rollers, substantially as specified.

2. The yoke or saddle D constructed to form outside end bearings to the steering-roller or its axle, in combination with the cross-joint or pin f and the king-bolt cl, connecting the steering-roller or rollers with the main frame,

essentially as herein described.

\Vitnesses: ANDERS LINDE'LOF.

MIoHAEI. RYAN, FRED. HAYNES.

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